python和opencv实现抠图

本文实例为大家分享了python实现抠图的具体代码,供大家参考,具体内容如下

其中使用了opencv中的grabcut方法

直接上代码

# encoding:utf-8

# 图像提取

# create by

import numpy as np

import cv2

from matplotlib import pyplot as plt

img = cv2.imread('1.jpg')

mask = np.zeros(img.shape[:2], np.uint8)

bgdModel = np.zeros((1, 65), np.float64)

fgdModel = np.zeros((1, 65), np.float64)

rect = (20, 20, 413, 591)

cv2.grabCut(img, mask, rect, bgdModel, fgdModel, 10, cv2.GC_INIT_WITH_RECT)

mask2 = np.where((mask == 2) | (mask == 0), 0, 1).astype('uint8')

img = img * mask2[:, :, np.newaxis]

img += 255 * (1 - cv2.cvtColor(mask2, cv2.COLOR_GRAY2BGR))

# plt.imshow(img)

# plt.show()

img = np.array(img)

mean = np.mean(img)

img = img - mean

img = img * 0.9 + mean * 0.9

img /= 255

plt.imshow(img)

plt.show()

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